Science: Insulation

insulation

Insulation
insulation

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COLD
ENERGY
FIRE
HEAT
HOT
INSULATOR
STOVE
SUN
TRANSFER
R H Q E R I F K I
E N E R G Y X N F
F H V A W E S F A
S T R Z T U T U P
N K H L L P O J N
A D O A C Z V I U
R L T F R K E O L
T O D U L D F C M
R C P N T M O P N
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